Results 1 to 10 of about 16,452 (194)

Long-Term Multi-Band and Polarimetric View of Mkn 421: Motivations for an Integrated Open-Data Platform for Blazar Optical Polarimetry

open access: yesGalaxies, 2017
In this work, by making use of the large software and database resources made available through online facilities such as the ASI Science Data Center (ASDC), we present a novel approach to the modelling of blazar emission whereby the multi-epoch SED for ...
Ulisses Barres de Almeida   +5 more
doaj   +1 more source

Multiwavelength modeling of TeV AGN observed by HESS [PDF]

open access: yes, 2007
The High Energy Stereoscopic System (H.E.S.S.) experiment, a ground-based gamma-ray Cherenkov telescope array located in Namibia, has now detected many extragalactic objects, which redshifts range from z=0.00183 up to z=0.2, possibly more.
Lenain, Jean-Philippe
core   +2 more sources

Suborbital Fermi/LAT Analysis of the Brightest Gamma-Ray Flare of Blazar 3C 454.3

open access: yesGalaxies, 2017
Recent detection of suborbital gamma-ray variability of Flat Spectrum Radio Quasar (FSRQ) 3C 279 by Fermi Large Area Telescope (LAT) is in severe conflict with established models of blazar emission.
Krzysztof Nalewajko
doaj   +1 more source

Theoretical Study of the Effects of Magnetic Field Geometry on the High-Energy Emission of Blazars

open access: yesGalaxies, 2016
The knowledge of the structure of the magnetic field inside a blazar jet, as deduced from polarization observations at radio to optical wavelengths, is closely related to the formation and propagation of relativistic jets that result from accretion onto ...
Manasvita Joshi   +2 more
doaj   +1 more source

Polarized blazar X-rays imply particle acceleration in shocks. [PDF]

open access: yesNature, 2022
Liodakis I   +127 more
europepmc   +1 more source

Blazar Compton Efficiencies

open access: yesJournal of Physics: Conference Series, 2012
The Fermi gamma-ray space telescope has dramatically increased the number of gamma-ray blazars known and means that for the first time, a large sample of blazars selected by the strength of their inverse Compton emission exists. We have cross-identified the blazars listed in the first Fermi-LAT catalog (1FGL) with the CRATES radio catalogue.
J A Gupta, I W A Browne, M W Peel
openaire   +1 more source

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